Mechanical movement.



No. 813,129. PATENTED FEB. 20, 1906. T. WINGO.

MECHANICAL MOVEMENT.

APPLICATION FILED JAN. 16, 1904.

2 SHEETS-SHEET 1.

PATENTED FEB. 20, 1906.

R. T. WINGO. MECHANICAL MOVEMENT.

APPLICATION FILED JAN.16, 1904.

2 SHEETS-SHEET 2.

Ava/EN T01? W1 TNES s5 5 UNITED STATES PA r NTT omen RICHARD-T. \VINGO,OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO BROWN AND SHARPE MANUFACTURINGCOMPANY, OF PROVI- DENOE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND;

MECHANICAL MOVEMENT.

Specification of Letters Patent.

Patented Feb. 20, 1906..

Application filed January 16, 1904. Serial No. 189.318.

1'0 all whom it may concern.-

Be it known that I, RICHARD T. WINGO, of Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Mechanical Movements; and I do hereby declare thefollowing specification, taken in connection with the'accompanyingdrawings, forming a part of the'same,to be a full, clear, andexactdemechanisms intooperation follows the throwing of the other "outof operation. In embodying this feature of the invention in a simple andefficient construction and one in which the parts operated by theintermittently-operating mechanism are securely locked in positionbetween operations I have employed certain further features'ofinvention. Certain ofthe'se features'relate to devices for insuring'theproper timing and operation of the clutch which I employfor operatingthe intermittent mechanism; These devices consist of'r'otary member ormembers carried by the clutch and non-rotary member or members movableinto and out of the path ofthe rotary members. These members 'aresoarranged and operated that in dis engaging a non-rotary member from arotary member to throw'the clutch into operation a. non-rotary member ismoved into the path of a rotary'member ready to throw the clutch:

out of operation,so that there is no danger offailure to throw out atthe proper time or of operating improperly. Certain further featuresrelate to'the devices for connecting.

the intermittent clutch with the parts to be op'eratedthereby andlocking said devices in position between operations. Further featuresrelate to the devices for operating the clutch for throwing the twomechanisms into and out of operation. These features, as well as theother features and combinations which contribute to the simplicity andefficiency of the mechanism, will be more definitely set forth in theclaims.

In the accompanying drawings is shown a mechanism embodying the variousfeatures of my invention in the forms which I preferto employ.

In the drawings, Figure 1 is a plan view of such mechanism. Fig. 2-is asectional eleva tion on line 2 2, Fig. I. I Fig. Sis a-plan view showinga modified form of intermittentlyoperating mechanism, and Figs. 4 and 5are a plan and elevation, respectively, of afur-ther modification. Fig.6 is a detail of the devices for'locking the clutch in mid-position.

In the construction shown the two mechanisms which may be alternatelythrown into operation are indicated as two gearsAand B, loosely mountedon a shaft D, with which either may be connected by a clutch C. The

'clutchis connected to rotate with the shaft,

while being free to slide thereon, and is provided with clutch teetharranged-to engage clutchteeth on the gears A and -B.- The gears may bedriving mechanisms for operating theshaft either in opposite directionsor at different speeds, or they maybe partsof mechanisms which aredriven from the shaft. The devices for shifting the clutch C to-throwthe gears A and B into or out of operation consist of two levers c c,mounted upon a common pivot and connected by a pine on the leverc, whichplaysin a slot 0 in the lever 0. The lever c is connected with theclutch by'means of pins 0 which engage an annular groove in the clutch.The ends of the slot 0 form shoulders for connecting the levers, whileallowing a limited movement of the lever 0 independent of the lever candthe clutch. When the lever c is operated to shift the clutch, itsmovement is not'imparted to the lever 0 until the play or lost motionbetween the levers has been taken up. During thisindependent movement ofthele'ver c a roller 0 mounted thereon, acts against one side of theV-shaped end of a spring-pressed plunger a, forcing the plunger backagainst the tension of its spring. At the time that the lost motionbetween the levers c -c is taken up the roller 0 passes the apex of theV on the plunger 0, so that the opposite side of the V acts against theroller to suddenly complete the movement of the lever c. this part ofthe movement of the lever c the pin a is in engagement withthe end ofthe slot 0 so that the lever c, and consequently During the clutch 0,move with the lever 0, thereby suddenly shifting the clutch from onegear to the other.

' By the mechanism just described, in which the shifting of the clutchin either direction is effected by a spring device which is set by theinitial independent movement of the clutch shifting device, the teeth ofthe clutch are suddenly disengaged from one gear and are forced intoengagement with the other gear by a yielding pressure. The teeth of theclutch, therefore, are not subjected to severe strain while partiallydisengaged, as would be the case if the movement of the clutch indisengaging it from one gear and engaging it with the other weregradual, and neither is there danger of injury to the parts in case thetops of the teeth are brought into engagement in engaging the clutch.

The initial movement of the lever a may be effected by means ofautomatic devices operated by some moving part of the machine in WlllChthe mechanism is embodied, or it may be effected manually by means of ahandle 0 formed on the end of the lever (2.

With the construction of clutch shifting mechanism described the springdevice al ways tends to force the clutch into engagement with one of thegears, and the clutchcannot, therefore, be conveniently shifted intomid-position and held in such position by operating the lever c. Toenable the clutch to be conveniently shifted into mid-position and heldtherein until it is desired to throw one of the mechanisms intooperation, I have employed an additional device by the operation ofwhich the clutch may be disengaged from either gear and held inmid-position. This device consists of a bar (1, provided at its forwardend with oppositely inclined camsurfaces d and parallel locking-surfacesd This bar cooperates with two shoulders d formed on the lever c, andwith parallel surfaces d arranged to register with the surfaces (1 Thearrangement of the bar and the shoulders on the lever c is such thatwhen the bar is advanced one of the cam-surfaces d will act against oneof the shoulders d and move the clutch away from the gear with which itis in engagement until the lockingsurfaces d register with the surfacesd when the surfaces d will pass between the shoulders (1 thus lockingthe lever c in mid-position a ainst the action of the spring-plunger c,which tends to return the clutch into engagement with the gear fromwhich it has been disengaged. When the bar is retracted, thespring-plunger acts to return the clutch into engagement with the gearfrom which it was disengaged. The bar may be advanced and retracted byoperating a lever d secured to the end of a rock-shaft d, which isprovided with a pinion engaging rack-teeth on the bar.

The intermittently-operated mechanism which is to be accurately andpositively timed with relation to the operation of the two mechanismsthrown into and out of operation by the movement of the clutch C isindicated as a gear E, operated through an intermittently-rotatingclutch F. The gear E is secured to a shaft E, through which the parts tobe intermittently operated may be driven. The gear E is connected withthe intermittently-operated clutch through a drivinggear G, which makesthe same number of revolutions as the gear E and is provided with blankspaces g, which register with the gear E when t eration. When the clutchis out of operation and a blank space 9 is opposite the teeth of thegear E, the gear E and the parts connected with it are locked inposition by means of a locking-segment H, secured to the gear G andarranged to cooperate with two locking-shoes I I, secured to the gear E.There is a-clearance-space I between the lockingshoes, so that the gearE may begin its revolution as soon as the locking-segment H has turnedsufficiently to clear the rear lockingshoe 1 This construction oflocking-segment and locking-shoes firmly locks the shaft in the positioninto which it is turned by the gear G, and by reason of theclearancespace I very little lost motion between the gear G and gear Eis required to effect the unlocking of the shaft. Consequently only oneor two teeth need be removed from the gear G in forming the blank spaceg, and only a slight movement of the gear G brings the teeth of thisgear into mesh with the teeth of the gear E. The intermittently-operatedmechanism is always under the positive control of either the gear Gorthe locking-segments and shoes, and there is no possibility,therefore, of getting the shaft and the parts operated thereby out oftime with the gear G and cam F. The devices for controlling theoperation of the clutch F are so constructed and arranged that theclutch makes a half-revolution each time that it is thrown intooperation, and conse uently the gear G is provided with' two blan spaces9 and two locking-segments, and two pairs of cooperating locking-shoesare connected with gear E.

The clutch F is connected to rotate with the gear G, while beingf'ree.to move longitudinally in relation thereto, and is forced toward aconstantly-rotating clutch member F by springs F interposed between theclutch and the hub of the gear G. The clutch is held out of engagementwith the clutch member F against the tension of the springs F by thecooperation of cams f, carried with the clutch,

and abutments J, movable into and out of the path of the cams. Asstated, the clutch F is to make a half revolution each time it is throwninto operation, and the cams f are accordingly arranged on diametricallyopposite sides of the clutch. The abut-ments J are are clutch F isdisengaged or out of op anism into operation. Whenever, therefore, theengagement of the clutch C with one of the gears follows thedisengagement of the clutch fromthe other gear, theintermittentmechanism will be operated, and it will be operated at such time only.There is no posranged-on the same side of the cam and are in the form ofplungers arranged to slide into and out of the path of the cams Theplungers are so connected or operated that one of them moves into thepath of a cam f as the other is disengaged from the other camf, and

consequently there is always an abutment in sibility, therefore, for theintermittent mechthe path of a cam ready to throw the clutch F anism toget out of time with either of the out of engagement with the clutchmember mechanisms controlled by the clutch O.

10 F. There is no possiblity, therefore, for the With the constructiondescribed, in which clutch to makemore than ahali-revolution or theclutch F makes a half-revolution each toget out of time with the deviceswhich op time it isthrown into operation and in which erate the plungersJ. The plungers J i are conthe clutch C is shifted from one gear toannected so that the inward movement of one other in throwing theclutchF into opera- 1 5 is accompanied by an outward movement of tion, the twopositions of the clutch F necesthe other by means of a pinion J, whichlies sarily correspond to the two extreme posibetween the plungers andengagesrack teeth tions-of the clutch C. In other words, the formedthereon. The pinion J is secured to clutch F will always be in theposition shown a short vertical shaft J which is rocked at in-Fig. 1when the clutch'C is in engagement the proper times to operate theplungers J. with the gear A and will always be advanced IVhen this shaftis rocked to withdraw one of a half-revolution from'this position whenthe the plungers J from engagementwith a cam f clutch is in engagementwith the gear B. and allow the clutch F to engage the rotating Such aconstruction is of especial advantage clutch member F, the other plungerJ is adin machines where it is essential that aninvanced into the pathof the other-cam f, so termittently-operated device shall be in one"that as the clutch completes a half-revoluof two positions orconditions when one of tion this camf acts against the abutment J totwomechanisms is in operation and shall be disengage the clutch from therotating clutch in the other position or condition whenthe member. Theclutch and gear G are held in other of the two mechanisms is inoperation.

0 position after each half revolution by a The same construction-withone of the mechspring-operated pin g, having a V-shaped anisms A or Bomitted might be employed end arranged to engage notches in the hub ofwith advantage-in cases where it is essential the gear. that anintermittently-operated device be in To avoid any possibility of gettingthe inone of two positions or conditions when a termittently --operatedmechanism out of mechanism is in operation and bein the other time withthe mechanisms thrown into and position or condition whenever themechanout of operation by theclutch C, the plunism is out of operation.In such case the gers J, the movement of which determines connectionbetween the "clutch for throwing the operation of the intermittentmechanthe mechanism into and out of operation and 40 ism, are controlledby the movement of the the device for controlling the clutchforvopclutchC. The connection between the clutch crating theintermittent mechanism would 0 and the plungers J consists of asegmentO, accurately and positively insure the proper projecting rearwardlyfrom thelever c and operation and positioning of the intermitengaging apinion Jflsecured" to the shaft J tently-operated mechanism withrelation to 5 With this connection between theclutch C the operation ornon-operation of the mechand the plungers J the movement of thevanismthrown into and out of operation by clutch from one of the gears AB to the'other; the clutch. will result in withdrawing one of theplungers In Fig. 3 a modified arrangement of the J from engagement witha cam f and the addevice for controlling the operation of the vance ofthe other-plunger into the path of clutch F is shown. In thisconstruction the theothcr cam f, and consequently will result clutch Fis provided with two diametrically in the operation ofthe intermittentmechopposite cams f,arranged in the same transanism. The movement of theclutch 0 into verse plane, but at different distances from mid-positionwill not, however, result in sufthe axis ofthe clutch. These two camscoopficient movement of the plunger J to disenerate with asingle-plunger J, which moves gage it from the cam f, and consequentlyif into the path of one cam as it is moved to disthe clutch is movedinto mid-position and is engage it from the other cam. For instance,afterward returned into engagement with the as the plunger J isretracted from the posisame gear from which it was disengaged there tionshown in Fig. 3 to the position shown in will be no operation of theintermittent mechdotted lines it disengages the cam f which is anism.If, however, the clutchCis disengaged nearer the axis of the clutch,thus allowing from one gear and moved into mid-position the clutch tomove into engagement with the and is subsequently moved into engagementclutch member F, and at the same time with the other gear, then theplungers J will moves into the path of thecam f which is farther fromthe axis of the clutch, so that be operated to throw the intermittentmechas the clutch completes a half-revolution this cam acts against theplunger to disengage the clutch from the clutch member F.

In Figs. 4c and 5 another modified construction of the devices forcontrolling the clutch F is shown. In this construction there is asingle cam f connected with the clutch, and this cam cooperates with twoabutments J, arranged on diametrically opposite sides of the clutch.These abutments are in the form of arms secured to a rocloshaft K, whichis rocked to disengage one of the abutments -from the cam f andsimultaneously move the other abutment into the path of the cam, so thatthe clutch is thrown out after making a half-revolution. The rockshaft Kis connected with a shaft K corresponding to the shaft J in Fig. 2 by arackbar K one end of which is provided with teeth engaging a pinion K onthe shaft K and the other end of which is provided with rack-teethengaging a segment K secured to the rock-shaft.

In all the different forms of device for controlling the operation ofthe clutch F the clutch is thrown into and out of operation bycooperating rotary and non-rotary members, and in each case whenever anon-rotary member is withdrawn from engagement with a rotary member anon-rotary member is simultaneously moved into the path of a rotarymember, so that the act of throwing the clutch into operation sets thedevices for throwing the clutch out of operation, and consequently theproper timing and oper ation of the clutch is positively insured. Asindicated in the modifications shown, one or more non-rotary members maybe employed or one or more rotary members, the result and mode ofoperation being in general the same with the different arrangements ofthe rotary and non-rotary members.

What I claim,- and desire to secure by Letters Patent, is

1. The combination with two mechanisms, of an intermittently-operatingmechanism, devices for throwing either of the two mechanisms into andout of operation and throwing the intermittent mechanism into operationwhen the throwing of either of the two mechanisms into operation followsthe throwing of the other out of operation, substantially as described.

2. The combination with two mechanisms, of a clutch for throwing eithermechanism into operation, and an intermittently-operating mechanismcontrolled through the movement of said clutch, substantially asdescribed.

3. The combination with two mechanisms, of a clutch for throwing eithermechanism into operation, an intermittently-operating .clutch controlledthrough the movement of said former clutch, substantially as described.

4. The combination with two mechanisms, of a clutch for throwing eithermechanism into operation, a second clutch, devices intermediate of theclutches for throwing said second clutch into operation when theengagement of the first clutch with either mechanism follows itsdisengagement from the other mechanism, substantially as described.

5. The combination of two mechanisms, a clutch for throwing eithermechanism into operation, a second clutch, devices intermediate theclutches for throwing the second clutch into operation when theengagement of the first clutch with either mechanism follows itsdisengagement from the other mechanism and for throwing said secondclutch out of operation after a half-revolution, substantially asdescribed.

6. The combination with a mechanism, of a clutch for throwing saidmechanism into and out of operation, a clutch-shifting device, a secondclutch, devices for engaging and disengaging said second clutchcontrolled by the movement of the device for shifting the first clutch,substantially as described.

7. The combination with two mechanisms, of a clutch for throwing eithermechanism into operation, a second clutch, rotary and non-rotary memberscooperating to throw said second clutch out of operation, devicesconnected with said first clutch for withdrawing a non-rotary memberfrom engagement with a rotary member and simultaneously moving anon-rotary member into the path of a rotary member, substantially asdescribed.

8. The combination with a clutch, of one or more cams carried by theclutch, one or more abutments for cooperating therewith to hold theclutch out of operation, a second clutch, a device for throwing saidsecond clutch into operation, and connections between said device andthe abutment or abutments for withdrawing an abutment from engagementwith a cam and simultaneously moving an abutment into the path of a cam,substantially as described.

9. The combination with two mechanisms, of a clutch for throwing eithermechanism into operation, an intermittently-operating mechanismincluding a driven gear, a driving-gear having diametrically oppositeblank spaces, a clutch for rotating said drivinggear, one or more camscarried by said clutch, one or more abutments for cooperating therewithto hold the clutch out of operation, devices connected with said firstclutch for withdrawing an abutment from engagement with a cam andsimultaneously moving an abutment into the path of a cam,lockingsegments rotating with the driving-gear and cooperatinglocking-shoes rotating with the driven gear, substantially as described.

10. The combination with a driven gear, of a driving-gear having blankspaces, locknag-segments corresponding with the blank gaging anon-rotary member from a rotary member and simultaneously moving anonrotary member into the path of a rotary member, substantially asdescribed.

11. The combination with a driven gear,

of a driving-gear which makes the same number of revolutions and isprovided with diametrically opposite blank spaces, and mechanism forintermittently rotating the drivinggear the distance between successiveblank spaces, substantially as described.

12. The combination with a driven gear, of a driving-gear which makesthe same number of revolutions and is provided with diametricallyopposite blank spaces, a clutch for driving said gear, and devices fordisengaging said clutch at each half-revolution, substantially asdescribed.

13. The combination with a driven gear, of a driving-gear having a blankspace, a locking-segment rotating with the drivinggear, cooperatinglocking-shoes rotating with the driven gear and separated byaclearancespace for the locking-segments, substantially as described.

14. The combination with a driven gear, of a driving-gear havingdiametrically opposite blank spaces, locking-segments corresponding withthe blank spaces, two pairs of locking-shoes rotating with the drivengear each pair being separated by a clearancespace for the cooperatinglocking-segments, substantially as described.

RICHARD T. WINGO.

Witnesses:

W. H. THURSTON, J. H. THURSTON.

